Onaga, KS Demographics

A map of Onaga's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	674	609	92.7%	89.7%
Asian	29	7	4.0%	1.0%
Multiracial	15	25	2.1%	3.7%
Hispanic	5	19	0.7%	2.8%
Native American/Other	4	16	0.6%	2.4%
Black	0	3	0.0%	0.4%

Onaga, Kansas has an estimated population of 727, an increase from the 679 recorded in the 2020 Census. The population is 92.7% White, 4.0% Asian, 2.1% Multiracial, 0.7% Hispanic, 0.6% Native American/Other, and 0.0% Black. This demographic dot map shows the population of Onaga, with one dot drawn for each person counted by the Census, color-coded by race.

Onaga has become considerably less racially diverse since the 2020 Census. It is considerably less diverse than Kansas overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Onaga, that probability was 19.3% in 2020 and 13.8% in the most recent ACS estimates.

Onaga is ranked the 251st most populous place in Kansas, out of 740 places. This ranking is based on the Census definition of a place, which includes incorporated places like cities, towns, and villages, as well as unincorporated census-designated places (CDPs). Onaga was ranked the 249th most populous place in the 2020 Census.

Onaga's White Population

674 residents of Onaga, or 92.7% of the population, identify as White. The share of White residents in Onaga is significantly higher than in Kansas overall, where 72.7% of the population is White. Onaga ranks 299th statewide in terms of White residents as a share of the population, out of 740 places.

Since the 2020 Census, Onaga's White population has grown by an estimated 10.7%. White residents' share of Onaga's population has increased from 89.7% to 92.7%.

Onaga is more White than neighboring Havensville (92.4% White), Soldier (86.8% White), and Emmett (87.6% White). Onaga is less White than neighboring Wheaton (100% White), and Corning (94.7% White).

Onaga's Black Population

0 residents of Onaga, or 0.0% of the population, identify as Black. The share of Black residents in Onaga is lower than in Kansas overall, where 5.2% of the population is Black. Onaga ranks 311th statewide in terms of Black residents as a share of the population, out of 740 places.

Since the 2020 Census, Onaga's Black population has declined by an estimated 100.0%. Black residents' share of Onaga's population has remained roughly unchanged at 0.0%.

Onaga's Asian Population

29 residents of Onaga, or 4.0% of the population, identify as Asian. The share of Asian residents in Onaga is comparable to the share in Kansas overall, where 2.9% of the population is Asian. Onaga ranks 102nd statewide in terms of Asian residents as a share of the population, out of 740 places.

Since the 2020 Census, Onaga's Asian population has grown by an estimated 314.3%. Asian residents' share of Onaga's population has increased from 1.0% to 4.0%.

Onaga is more Asian than neighboring Havensville (0% Asian), Wheaton (0% Asian), Soldier (0% Asian), Emmett (0% Asian), and Corning (0% Asian).

Onaga's Hispanic Population

5 residents of Onaga, or 0.7% of the population, identify as Hispanic. The share of Hispanic residents in Onaga is considerably lower than in Kansas overall, where 13.6% of the population is Hispanic. Onaga ranks 487th statewide in terms of Hispanic residents as a share of the population, out of 740 places.

Since the 2020 Census, Onaga's Hispanic population has declined by an estimated 73.7%. Hispanic residents' share of Onaga's population has decreased from 2.8% to 0.7%.

Onaga is more Hispanic than neighboring Wheaton (0% Hispanic), and Soldier (0% Hispanic). Onaga is less Hispanic than neighboring Havensville (5.2% Hispanic), Emmett (6.7% Hispanic), and Corning (2.1% Hispanic).

Onaga's Native American/Other Population

4 residents of Onaga, or 0.6% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Onaga is comparable to the share in Kansas overall, where 0.9% of the population is Native American/Other. Onaga ranks 108th statewide in terms of Native American/Other residents as a share of the population, out of 740 places.

Since the 2020 Census, Onaga's Native American/Other population has declined by an estimated 75.0%. Native American/Other residents' share of Onaga's population has decreased from 2.4% to 0.6%.

Onaga is more Native American/Other than neighboring Wheaton (0% Native American/Other), and Corning (0% Native American/Other). Onaga is less Native American/Other than neighboring Havensville (2.3% Native American/Other), Soldier (2.9% Native American/Other), and Emmett (3.9% Native American/Other).

Onaga's Multiracial Population

15 residents of Onaga, or 2.1% of the population, identify as Multiracial. The share of Multiracial residents in Onaga is slightly lower than in Kansas overall, where 4.8% of the population is Multiracial. Onaga ranks 476th statewide in terms of Multiracial residents as a share of the population, out of 740 places.

Since the 2020 Census, Onaga's Multiracial population has declined by an estimated 40.0%. Multiracial residents' share of Onaga's population has decreased from 3.7% to 2.1%.

Onaga is more Multiracial than neighboring Havensville (0% Multiracial), Wheaton (0% Multiracial), and Emmett (1.7% Multiracial). Onaga is less Multiracial than neighboring Soldier (10.3% Multiracial), and Corning (3.2% Multiracial).

Sources: Most recent population estimates are from the 2020-2024 American Community Survey 5-Year Estimates. 2020 population counts and map data are from 2020 Census State Redistricting Data. Geographic data are from Census TIGER/Line Shapefiles.